ShardHelper

public class ShardHelper
extends Object implements IShardHelper

java.lang.Object
↳	com.android.tradefed.invoker.shard.ShardHelper

Known direct subclasses StrictShardHelper StrictShardHelper Sharding strategy to create strict shards that do not report together,

Known indirect subclasses DynamicShardHelper DynamicShardHelper Sharding strategy to allow work remote work queueing between multiple TF instances

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Helper class that handles creating the shards and scheduling them for an invocation.

Summary

Fields
public static final String	LAST_SHARD_DETECTOR
public static final String	SHARED_TEST_INFORMATION

Public constructors
ShardHelper()

Public methods
boolean	shardConfig(IConfiguration config, TestInformation testInfo, IRescheduler rescheduler, ITestLogger logger) Attempt to shard the configuration into sub-configurations, to be re-scheduled to run on multiple resources in parallel.

Protected methods
IGlobalConfiguration	getGlobalConfiguration() Returns the current global configuration.
void	validateOptions(TestInformation testInfo, IConfiguration config) Runs the IConfiguration.validateOptions() on the config.

Fields

LAST_SHARD_DETECTOR

public static final String LAST_SHARD_DETECTOR

SHARED_TEST_INFORMATION

public static final String SHARED_TEST_INFORMATION

Public constructors

ShardHelper

public ShardHelper ()

Public methods

shardConfig

public boolean shardConfig (IConfiguration config, 
                TestInformation testInfo, 
                IRescheduler rescheduler, 
                ITestLogger logger)

Attempt to shard the configuration into sub-configurations, to be re-scheduled to run on multiple resources in parallel.

A successful shard action renders the current config empty, and invocation should not proceed.

Parameters
config	IConfiguration: the current IConfiguration.
testInfo	TestInformation: the TestInformation holding the tests information.
rescheduler	IRescheduler: the IRescheduler
logger	ITestLogger

Returns
boolean	true if test was sharded. Otherwise return false

See also:

• IShardableTest
• IRescheduler

Protected methods

getGlobalConfiguration

protected IGlobalConfiguration getGlobalConfiguration ()

Returns the current global configuration.

Returns
IGlobalConfiguration

validateOptions

protected void validateOptions (TestInformation testInfo, 
                IConfiguration config)

Runs the IConfiguration.validateOptions() on the config.

Parameters
testInfo	TestInformation
config	IConfiguration